ashatora/openlayers
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Allow geometries to use a shared vertex array

Browse Source 
The ol.geom.SharedVertices structure represents a flattened array of vertex coordinates.  This is intended to support optimal WebGL rendering.
This commit is contained in:
Tim Schaub
2013-03-02 18:39:24 +01:00
parent bdfa2cc88c
commit b52d283641
23 changed files with 1086 additions and 217 deletions
Download Patch File Download Diff File Expand all files Collapse all files
test/spec/ol/geom/linestring.test.js
+49 -12
View File
@@ -16,18 +16,12 @@ describe('ol.geom.LineString', function() {
}).toThrow();
});
});
describe('#coordinates', function() {
it('is an array', function() {
var line = new ol.geom.LineString([[10, 20], [30, 40]]);
expect(line.coordinates.length).toBe(4);
expect(line.coordinates[0]).toBe(10);
expect(line.coordinates[1]).toBe(20);
expect(line.coordinates[2]).toBe(30);
expect(line.coordinates[3]).toBe(40);
it('accepts shared vertices', function() {
var vertices = new ol.geom.SharedVertices();
var l1 = new ol.geom.LineString([[10, 20], [30, 40]], vertices);
var l2 = new ol.geom.LineString([[50, 60], [70, 80]], vertices);
expect(l1.getCoordinates()).toEqual([[10, 20], [30, 40]]);
expect(l2.getCoordinates()).toEqual([[50, 60], [70, 80]]);
});
});
@@ -59,8 +53,51 @@ describe('ol.geom.LineString', function() {
});
describe('#getCoordinates', function() {
it('returns an array', function() {
var line = new ol.geom.LineString([[10, 20], [30, 40]]);
expect(line.getCoordinates()).toEqual([[10, 20], [30, 40]]);
});
});
describe('#getSharedId()', function() {
it('returns identifiers', function() {
var vertices = new ol.geom.SharedVertices();
var l1 = new ol.geom.LineString([[10, 20], [30, 40]], vertices);
var l2 = new ol.geom.LineString(
[[50, 60], [70, 80], [90, 100]], vertices);
var id1 = l1.getSharedId();
var id2 = l2.getSharedId();
expect(vertices.coordinates).toEqual(
[10, 20, 30, 40, 50, 60, 70, 80, 90, 100]);
expect(vertices.getStart(id1)).toBe(0);
expect(vertices.getCount(id1)).toBe(2);
expect(vertices.get(id1, 0, 0)).toBe(10);
expect(vertices.get(id1, 0, 1)).toBe(20);
expect(vertices.get(id1, 1, 0)).toBe(30);
expect(vertices.get(id1, 1, 1)).toBe(40);
expect(vertices.getStart(id2)).toBe(4);
expect(vertices.getCount(id2)).toBe(3);
expect(vertices.get(id2, 0, 0)).toBe(50);
expect(vertices.get(id2, 0, 1)).toBe(60);
expect(vertices.get(id2, 1, 0)).toBe(70);
expect(vertices.get(id2, 1, 1)).toBe(80);
expect(vertices.get(id2, 2, 0)).toBe(90);
expect(vertices.get(id2, 2, 1)).toBe(100);
});
});
});
goog.require('ol.geom.Geometry');
goog.require('ol.geom.LineString');
goog.require('ol.geom.SharedVertices');